tree 97e36cffbc042f0982bfc8c3d17572c3329b1578
parent 076d84bbdb396360d16aaa108c55aa1e24ad47a3
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1204158070 -0800
committer Ingo Molnar <mingo@elte.hu> 1204312873 +0100

rcupreempt: fix hibernate/resume in presence of PREEMPT_RCU and hotplug

This fixes a oops encountered when doing hibernate/resume in presence of
PREEMPT_RCU.

The problem was that the code failed to disable preemption when
accessing a per-CPU variable.  This is OK when called from code that
already has preemption disabled, but such is not the case from the
suspend/resume code path.

Reported-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>